Hi,
I tried to implement the bitmap buttons under win32 interface to show correctly the image and the button caption (now the caption is not displayed - it's because the button is defined with flag BS_BITMAP). It should be defined with flag BS_OWNERDRAW and painted in processing WM_DRAWITEM message.
In WM_DRAWITEM I filled the TLMDrawItems structure. The LM_DRAWITEM message is processed in procedure TCustomForm.WndProc but only for ODT_MENU. Can this procedure be extended about processing ODT_BUTTON? I think something like this:
...
if CtlType = ODT_BUTTON then
begin
CNSendMessage(LM_DRAWITEM, TObject(GetProp(hwndItem ,'WinControl')), Pointer(TheMessage.LParam)); { or calling an interface function - what would be better? }
end;
...

When processing ODT_BUTTON will be there I will make the rest and send a patch.

Martin Smat.

This is win32 specific. Under gtk you don't need to draw it yourself, you can simply insert a pixmap into a button. Every used custom draw function in the LCL should be avoided to get theme dependent controls. Can we delegate the bitmap drawing to the win32 interface?

Mattias

Why Timers in Win32 dont work?
I try use, TTimer and TIdleTimer, but no work.
The app compiles fine, but timer not work.

This is part of my code.

Procedure TESTTIMER_ONTIMER();
Begin
    MAINFORM.TIMELABEL.Caption := 'Test';
    Application.MessageBox('Test','test',1)
End;
Constructor MAINFORMCLASS.Create(AOwner: TComponent);
Begin
     Inherited Create(AOwner);
     Caption  := 'Timer Test';
     Width  := 120;
     Height  := 100;
    TESTTIMER := TIdleTimer.Create(Self);
    TESTTIMER.Interval  := 1000;
    TESTTIMER.OnTimer  := @TESTTIMER_ONTIMER;
End;
destructor MAINFORMCLASS.Destroy;
begin
     inherited Destroy;
end;

On Fri, 5 Sep 2003 16:52:22 -0300
"Prof. Roberto A. Berrospe Machin"

Why Timers in Win32 dont work? I try use, TTimer and TIdleTimer, but no work.

I have no problems with TTimer, I didn't TIdleTimer.

The app compiles fine, but timer not work.

This surprises me. It shouldn't compiler.

It should give an error on this line. The signature of TESTTIMER_ONTIMER is wrong.
Either this is NOT your code, or you are using an old fpc compiler.

Under win32 it is possible to insert the pixmap in a simple way too. But only when the button is created with the flag BS_BITMAP and in this case the button can contain *only* the pixmap, nothing more (text caption). Can I add drawing the custom button directly into win32 interface (into WindowProc add processing WM_DRAWITEM message)?

Martin Smat.

Sure.

Mattias